linux-kernel - Re: IRQF_SAMPLE

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Message-ID: <49DA4ECC.9050204@garzik.org>
Date:	Mon, 06 Apr 2009 14:49:48 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Stephen Hemminger <shemminger@...tta.com>
CC:	Robin Getz <rgetz@...ckfin.uclinux.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chris Peterson <cpeterso@...terso.com>,
	Matt Mackall <mpm@...enic.com>,
	David Miller <davem@...emloft.net>
Subject: Re: IRQF_SAMPLE_RANDOM question...

Stephen Hemminger wrote:
> The real problem one is xen-netfront. Because 1) it is least random,
> the attacker might be another VM 2) the VM is most in need of random
> samples because it doesn't have real hardware.

Agreed.

I'm surprised Xen doesn't use virtio-rng.  I guess it needs a special 
Xen paravirt driver for randomness.

	Jeff


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